Quoting Paul <unix@xxxxxxxxxxxxxx>:
I could dd it back and start from scratch. I see that fdisk must be run to resize the partition, then run pvresize. I was under the impression that changing the partition with fdisk will lose any data on it?
As long as the start of partition does not change (or in other words, partition only gets resized, but not moved), you will not loose any data. The steps are:
1. Expanding file system - expand partition using fdisk - expand physical volume - expand logical volume - expand file system 2. Shrinking file system - shrink file system - shrink logical volume - shrink physical volume (currently not always possible) - shrink partition
Here's what I have. Yes, I am running LVM2, latest updates on Centos4.4: # fdisk -l Disk /dev/hda: 41.1 GB, 41174138880 bytes 255 heads, 63 sectors/track, 5005 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System /dev/hda1 * 1 13 104391 83 Linux /dev/hda2 14 2501 19984860 8e Linux LVM
So you'd just recreate hda2 to start at the cylinder 14 and end the end of the disk. Also make sure the ID stays 8e (Linux LVM).
# fdisk /dev/hda2
Well, you can't fdisk /dev/hda2. It's partition. Hopefully you haven't exited from fdisk using "w" command (it could really screw up whatever was on hda2). You probably wanted to "fdisk /dev/hda".
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